Beginning from the 1960s, cities in Turkey continue dealing with a constant and rapid transformation which causes great pressure particularly for the 20th century and Modernist architectural heritage in those cities. Threat of rapid urbanization is not limited to big cities but also valid for those Anatolian cities planned in between the 1920s and 1960s. The main risk is the limited understanding of integrity and authenticity concepts by decision-makers and planners. For those cities which are visually and aesthetically disowned of a numerous historic layers, they require a careful management of change. The integration of historic preservation with general urban planning decisions is substantial and should aim for the preservation of fundamental, spatial, environmental and social balances. Small Anatolian cities planned between 1920 and 1960 have a significant urban layer dating back to the early 20th century, which forms an integral part of public and urban memory, and the perception of the place. The lack of a systematic legislation and capital based approach supported by authorities especially cause the loss of Modernist architectural heritage. This article aims to propose a methodology for a holistic preservation approach for three cities in west Anatolia, Akhisar, Alas¸ehir and Tire, where existing features of modern planning period is a part of their authentic character.